Based on the information given the size of the money multiplier is 10.
In order to find or determine the size of the money multiplier we are going to make use of money multiplier formula.
Using this formula
Money multiplier=1/r
Where:
r=Reserve ratio=10% or 0.10
Let plug in the formula
Size of money multiplier=1/0.10
Size of money multiplier=10
Inconclusion the size of the money multiplier is 10.
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